Lath board



Patented Feb. 8,1927.v

. sILAs ivi. ronn,l or` sfr. rA-unlivinvnnsorA; FiNAnnEen-nn yer ooma'r Assiette@ y r; reen, winow er sAIn srLAs ivi.l roan,=-nncnAsnn tre LATH BOARD.

Appiicaiion aieiiinovemberav, i922.v sei-iai Namaste.

One object of niyiiuveiition is to 'provide' in a lath board means for retaining the lboardfin the shape` and size in which it is manufactured.V Q. g

Another object is to provide'in VaV lath board,,havngalternate lathl like faces and i u "construction than where both front and rear intermediate depressions, Ia construction such that a minimum amountgof material is required in its manufacture.

Janother object is to provide in an article of the class described a plurality of lath like faces on one side thereof and a `plurality of wide intermediate depressions on the other side thereof.

Another object is to provide a binding wire or ribbon of such shape' that it can readilybe bent to clamp the completed board in its proper shape.

, With these and incidental objects in view,

the invention consists of certain novel fea-` tures of construction and combinations of parts, the essential 'elements of which are hereinafter described with reference to the drawing` which raccompanies and formsv Ia part of this specication. I i

In the drawing, Figure 1 is a perspective view of the completed lath board embodying my invention; Figure 2 is an end view of the same; Figure 3 is a perspective view` of one of the reinforcing wires before ythe spearhead end has been bent-or formed over, and Figure 4 ris a similar view after the Spearhead end has been formed into its permanent position.

This invention constitutes an improvement of the material produced vby the method shown in my Patent No 1208,535 issued December 12, 1916, and entitled, Methode of making lath board, although following the same general line of producing a lath board of plaited felt or paper' having substantially dovetail corrugations therein.

As shown in the drawing, the lath` like faces 1 are of `-width similar tothat used in ordinary lath and the/ depressions 2 intermediate of these lath-like faces are similar to the spaces ordinarily used in lathing, my preference being'to have the faces 11/2 in width and depressions 1/2 inwidth.

However, instead of having the rear faces 8 of a width equal to that of the front face 1 and as shown in my prior ypatentff vmake these facesv narrower, preferably about 3@ of an inch and thereby effect a material saving the sheet ofl feltfor paperrequired .forming the completedxboard;

I rv also make `a material V-saving yin vthe amount of plasteraequireclto fill the vintermediate depressions, i Y

`Moreovenas theianglesg t are less with `this faces are of equal'width, the completed lath board is stronger. f n It is evident thatwith a lath board of this construction there is a tendency for the com# pl'eted board to grow, that is the spaces will tend to become wider` and the board to readily pierce the webs 9 of the lath board and has a narrow throat 1() so that where pressure is app-lied transversely against the spearhead the bend will always be formed lat the throat end as shown in Figure 4.

vI prefer to insert vthese wires when the lath board is corrugated and preferably when itis still in the machine which does the corrugating and bend the spearhead over as shown while the board is still in the machine so it is securely held in the shape to which it is formed `in the corrugating inachine.` v

i While I may make lath board of any size, I find that sheets having a width A of 32 and a length B of 25% isy most convenient for manufacturing and applying to studding' in building constructiomand in such a sheet I prefer to use seven reinforcingwire's uni formally spaced as shown.

While I have described'my invention and illustrated it in one particular design, I

do not wish itto be understood that I limit 10o g i to form a plurality' offxlath-like facesv and intermedi-ate depressions, of a reinforcing testez To. CLARA v'1o v y i `751- The lSpearhead has a point 8 which'serves Wire having each end thereof formed at an angle to the intermediate portion of the Wire to maintain the Width `of the completed and faces of a lesser Width on the other side thereof, of Webs connecting said faces and a plurality of reinforcing Wires piercing said Webs intermediate of'said faces and having each end thereofA formed at an angle to the intermedi-ate portion of the Wire to maintain the length of the completed board.

3. A reinforcing Wire for lath board having one end thereof formed at substantially right angles to the length of the Wire and having the other end thereof formed into a head With a reduced cross section to lo' cate the bend resulting from 'transverse pressure on the head; y

-l-. The combination with a sheet of suitable material formed into dove-tailed shape and having substantially opposed faces With connecting webs therebetween, of a Wire piercing said webs, one end of said wire bel ing fornied over at substantially right angles to the length of said Wire, the other end of said Wire having a reduced cross section to locate the bend yformed by transverse pressure applied at said latter end.

SILAS M. FORD. 

